Is an AND gate a transistor?
From Transistors to Functions. For the purpose of this class, we will consider transistors to be the basic building blocks of computer hardware. A transistor is an electronic device that has three ends: a source, a sink, and a gate.
How many transistors are in a XOR gate?
XOR gate in CMOS can be implemented using minimum of 8 transistors. 2:1 MUX implementation.
How many transistors are there in 3 inputs NAND gate?
An alternative design for the 3-input NAND gate uses CMOS transistors as building blocks, as shown in Figure 4.2. This circuit needs only 6 transistors, and is symmetric w.r.t. its inputs.
How many inputs are there in an AND gate?
The AND Gate If any input(s) is “low” (0), the output is guaranteed to be in a “low” state as well. In case you might have been wondering, AND gates are made with more than three inputs, but this is less common than the simple two-input variety.
How many and gates are required for a 8 to 1 multiplexer?
From the above Boolean equation, the logic circuit diagram of an 8-to-1 multiplexer can be implemented by using 8 AND gates, 1 OR gate and 7 NOT gates as shown in below figure.
What is the symbol of XOR gate?
An XOR gate is also called exclusive OR gate or EXOR. In a two-input XOR gate, the output is high or true when two inputs are different. In Boolean expression, the term XOR is represented by the symbol (⊕) and the Boolean expression is represented as Y = A ⊕ B.
Which logic family is fastest?
Emitter-coupled logic (ECL) is a BJT-based logic family which is generally considered as the fastest logic available. ECL achieves its high-speed operation by employing a relatively small voltage swing and preventing the transistors from entering the saturation region.
Can we convert or gate to gate?
It is still possible to create an OR function from an AND / NAND gate and inverters, or an AND gate from a NOR / OR function. The diagram below gives some of the conversions. As an example it can be seen that a NOR gate is the same as an AND gate with two inverters on the input.
Can an AND gate have 3 inputs?
Like the AND gate, the OR function can have any number of individual inputs. However, commercial available OR gates are available in 2, 3, or 4 inputs types. Additional inputs will require gates to be cascaded together for example.
How many transistors are there in a NAND gate?
A NOT gate is 1 transistor. A NAND gate is 1 transistor per input. A NOR gate is 1 transistor per input. An AND gate is basically a NAND gate + a NOT gate, so it takes 1 transistor more than a NAND gate. Same for OR vs NOR.
How many transistors are there in a gate and CMOS?
Each transmission gate requires 6 transistors ( 4 for mux + 2 for inverter gate). Total numbers of transistors =2* ( 3-input NAND gate)+1* (2-input NOR gate)=2*6+1*4=16 Page 6 3.8 Figure P3. 6 shows half of a CMOS circuit.
How is an AND gate built using transistors?
The inputs A & B are connected to the base terminal of Transistor 1 and Transistor 2, respectively and the output Q goes to the positive terminal LED. The below diagram represents the above-explained circuit to build an AND gate using NPN Transistor.
How many transistors are there in a logic gate?
Active Oldest Votes. 4. If you are making gates out of discrete transistors, diodes and resistors, you can make an inverter with one transistor, a NAND with two transistors, or with diodes. If it is in a integrated circuit, where a resistor is more complex to make than a transistor, more transistors are used either for polarisation